Yuka's mother has been living with her son Yugo since her husband passed away. Working hard on his own, Yugo grew up healthy and became a student aiming for a first-rate university. From now on, hard work will be rewarded, and if Yugo becomes a member of society, a happy life awaits him... as it should be. In the summer before Yugo's graduation the following year, Mizuno and his parents consulted their homeroom teacher, Oshima. After a favorable three-way meeting, Yuka, left alone in class, is informed that there is a problem with Yugo continuing in college.
